A transistor amplifier which uses a npn BJT and various passive components isshown in Figure Q2. A table of component values is shown in Table Q2. Calculate theinput resistance.+VccR1Q1VoutVinR2R3Figure Q2R: = R2 = 50 knR3 = 5 kn+Vcc = 15 VVBE(dc) = 0.7 VVT = 25 mVQ: B = 200Table of Component values and Transistor ParametersTable Q2O 1k2O 2.5k2O 25k2None of these values

Here BJT is given so draw h parameter model and find input resis

input resistance. +Vcc R1 Vout Vin R2 R3 Figure Q2 R: = R2 = 50 kQ R3 = 5 kn +Vcc = 15 V VBE(de) = 0.7 V VT = 25 mv Qi: B = 200 Table of Component values and Transistor Parameters Table Q2 O 1k2 O 2.5kN O 25k2 None of these values

input resistance. +Vcc R1 Vout Vin R2 R3 Figure Q2 R: = R2 = 50 kQ R3 = 5 kn +Vcc = 15 V VBE(de) = 0.7 V VT = 25 mv Qi: B = 200 Table of Component values and Transistor Parameters Table Q2 O 1k2 O 2.5kN O 25k2 None of these values

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Question

A transistor amplifier which uses a npn BJT and various passive components is
shown in Figure Q2. A table of component values is shown in Table Q2. Calculate the
input resistance.
+Vcc
R1
Q1
Vout
Vin
R2
R3
Figure Q2
R: = R2 = 50 kn
R3 = 5 kn
+Vcc = 15 V
VBE(dc) = 0.7 V
VT = 25 mV
Q: B = 200
Table of Component values and Transistor Parameters
Table Q2
O 1k2
O 2.5k2
O 25k2
None of these values

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